""" db_print.py -- a simple demo for ADO database reads."""
from __future__ import with_statement #needed for Python 2.5

import sys
import adodbapi.ado_consts as adc

cmd_args = ('filename', 'table_name')
if 'help' in sys.argv:
    print('possible settings keywords are:',cmd_args)
    sys.exit()

kw_args = {}    # pick up filename and proxy address from command line (optionally)
for arg in sys.argv:
    s = arg.split("=")
    if len(s) > 1:
        if s[0] in cmd_args:
            kw_args[s[0]] = s[1]
            
kw_args.setdefault('filename', "test.mdb") # assumes server is running from examples folder
kw_args.setdefault('table_name', 'Products') # the name of the demo table

# the server needs to select the provider based on his Python installation
provider_switch = ['provider', 'Microsoft.ACE.OLEDB.12.0', "Microsoft.Jet.OLEDB.4.0"]

# ------------------------ START HERE -------------------------------------
#create the connection
constr = "Provider=%(provider)s;Data Source=%(filename)s"
import adodbapi as db
con = db.connect(constr, kw_args, macro_is64bit=provider_switch)

if kw_args['table_name'] == '?':
    print('The tables in your database are:')
    for name in con.get_table_names():
        print(name)
else:
#make a cursor on the connection
    with con.cursor() as c:

        #run an SQL statement on the cursor
        sql = 'select * from %s' % kw_args['table_name']
        print('performing query="%s"'  % sql)
        c.execute(sql)

        #check the results
        print('result rowcount shows as= %d. (Note: -1 means "not known")' \
              % (c.rowcount,))
        print('')
        print('result data description is:')
        print('            NAME Type         DispSize IntrnlSz Prec Scale Null?')
        for d in c.description:
            print(('%16s %-12s %8s %8d %4d %5d %s') % \
                  (d[0], adc.adTypeNames[d[1]], d[2],   d[3],  d[4],d[5], bool(d[6])))
        print('')
        print('str() of first five records are...')

        #get the results
        db = c.fetchmany(5)

        #print them
        for rec in db:
            print(rec)

        print('')
        print('repr() of next row is...')
        print(repr(c.fetchone()))
        print('')
con.close()
